21915550

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:130

約数の個数: 96

約数和(自身を含む): 48211200

約数和(自身を除く): 26295650

約数列:

[1, 2, 5, 10, 17, 19, 23, 25, 34, 38, 46, 50, 59, 85, 95, 115, 118, 170, 190, 230, 295, 323, 391, 425, 437, 475, 575, 590, 646, 782, 850, 874, 950, 1003, 1121, 1150, 1357, 1475, 1615, 1955, 2006, 2185, 2242, 2714, 2950, 3230, 3910, 4370, 5015, 5605, 6785, 7429, 8075, 9775, 10030, 10925, 11210, 13570, 14858, 16150, 19057, 19550, 21850, 23069, 25075, 25783, 28025, 33925, 37145, 38114, 46138, 50150, 51566, 56050, 67850, 74290, 95285, 115345, 128915, 185725, 190570, 230690, 257830, 371450, 438311, 476425, 576725, 644575, 876622, 952850, 1153450, 1289150, 2191555, 4383110, 10957775, 21915550]

約数ペア:

[(1, 21915550), (2, 10957775), (5, 4383110), (10, 2191555), (17, 1289150), (19, 1153450), (23, 952850), (25, 876622), (34, 644575), (38, 576725), (46, 476425), (50, 438311), (59, 371450), (85, 257830), (95, 230690), (115, 190570), (118, 185725), (170, 128915), (190, 115345), (230, 95285), (295, 74290), (323, 67850), (391, 56050), (425, 51566), (437, 50150), (475, 46138), (575, 38114), (590, 37145), (646, 33925), (782, 28025), (850, 25783), (874, 25075), (950, 23069), (1003, 21850), (1121, 19550), (1150, 19057), (1357, 16150), (1475, 14858), (1615, 13570), (1955, 11210), (2006, 10925), (2185, 10030), (2242, 9775), (2714, 8075), (2950, 7429), (3230, 6785), (3910, 5605), (4370, 5015)]