21195450

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:141

約数の個数: 144

約数和(自身を含む): 62481120

約数和(自身を除く): 41285670

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 25, 30, 37, 38, 45, 50, 57, 67, 74, 75, 90, 95, 111, 114, 134, 150, 171, 185, 190, 201, 222, 225, 285, 333, 335, 342, 370, 402, 450, 475, 555, 570, 603, 666, 670, 703, 855, 925, 950, 1005, 1110, 1206, 1273, 1406, 1425, 1665, 1675, 1710, 1850, 2010, 2109, 2479, 2546, 2775, 2850, 3015, 3330, 3350, 3515, 3819, 4218, 4275, 4958, 5025, 5550, 6030, 6327, 6365, 7030, 7437, 7638, 8325, 8550, 10050, 10545, 11457, 12395, 12654, 12730, 14874, 15075, 16650, 17575, 19095, 21090, 22311, 22914, 24790, 30150, 31635, 31825, 35150, 37185, 38190, 44622, 47101, 52725, 57285, 61975, 63270, 63650, 74370, 94202, 95475, 105450, 111555, 114570, 123950, 141303, 158175, 185925, 190950, 223110, 235505, 282606, 286425, 316350, 371850, 423909, 471010, 557775, 572850, 706515, 847818, 1115550, 1177525, 1413030, 2119545, 2355050, 3532575, 4239090, 7065150, 10597725, 21195450]

約数ペア:

[(1, 21195450), (2, 10597725), (3, 7065150), (5, 4239090), (6, 3532575), (9, 2355050), (10, 2119545), (15, 1413030), (18, 1177525), (19, 1115550), (25, 847818), (30, 706515), (37, 572850), (38, 557775), (45, 471010), (50, 423909), (57, 371850), (67, 316350), (74, 286425), (75, 282606), (90, 235505), (95, 223110), (111, 190950), (114, 185925), (134, 158175), (150, 141303), (171, 123950), (185, 114570), (190, 111555), (201, 105450), (222, 95475), (225, 94202), (285, 74370), (333, 63650), (335, 63270), (342, 61975), (370, 57285), (402, 52725), (450, 47101), (475, 44622), (555, 38190), (570, 37185), (603, 35150), (666, 31825), (670, 31635), (703, 30150), (855, 24790), (925, 22914), (950, 22311), (1005, 21090), (1110, 19095), (1206, 17575), (1273, 16650), (1406, 15075), (1425, 14874), (1665, 12730), (1675, 12654), (1710, 12395), (1850, 11457), (2010, 10545), (2109, 10050), (2479, 8550), (2546, 8325), (2775, 7638), (2850, 7437), (3015, 7030), (3330, 6365), (3350, 6327), (3515, 6030), (3819, 5550), (4218, 5025), (4275, 4958)]