21231900

素因数分解:

$2^2\times 3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{761}}^1$

素因数の和:812

約数の個数: 108

約数和(自身を含む): 68787264

約数和(自身を除く): 47555364

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 31, 36, 45, 50, 60, 62, 75, 90, 93, 100, 124, 150, 155, 180, 186, 225, 279, 300, 310, 372, 450, 465, 558, 620, 761, 775, 900, 930, 1116, 1395, 1522, 1550, 1860, 2283, 2325, 2790, 3044, 3100, 3805, 4566, 4650, 5580, 6849, 6975, 7610, 9132, 9300, 11415, 13698, 13950, 15220, 19025, 22830, 23591, 27396, 27900, 34245, 38050, 45660, 47182, 57075, 68490, 70773, 76100, 94364, 114150, 117955, 136980, 141546, 171225, 212319, 228300, 235910, 283092, 342450, 353865, 424638, 471820, 589775, 684900, 707730, 849276, 1061595, 1179550, 1415460, 1769325, 2123190, 2359100, 3538650, 4246380, 5307975, 7077300, 10615950, 21231900]

約数ペア:

[(1, 21231900), (2, 10615950), (3, 7077300), (4, 5307975), (5, 4246380), (6, 3538650), (9, 2359100), (10, 2123190), (12, 1769325), (15, 1415460), (18, 1179550), (20, 1061595), (25, 849276), (30, 707730), (31, 684900), (36, 589775), (45, 471820), (50, 424638), (60, 353865), (62, 342450), (75, 283092), (90, 235910), (93, 228300), (100, 212319), (124, 171225), (150, 141546), (155, 136980), (180, 117955), (186, 114150), (225, 94364), (279, 76100), (300, 70773), (310, 68490), (372, 57075), (450, 47182), (465, 45660), (558, 38050), (620, 34245), (761, 27900), (775, 27396), (900, 23591), (930, 22830), (1116, 19025), (1395, 15220), (1522, 13950), (1550, 13698), (1860, 11415), (2283, 9300), (2325, 9132), (2790, 7610), (3044, 6975), (3100, 6849), (3805, 5580), (4566, 4650)]