21647850

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:464

約数の個数: 96

約数和(自身を含む): 62674560

約数和(自身を除く): 41026710

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 53, 70, 75, 105, 106, 150, 159, 175, 210, 265, 318, 350, 371, 389, 525, 530, 742, 778, 795, 1050, 1113, 1167, 1325, 1590, 1855, 1945, 2226, 2334, 2650, 2723, 3710, 3890, 3975, 5446, 5565, 5835, 7950, 8169, 9275, 9725, 11130, 11670, 13615, 16338, 18550, 19450, 20617, 27230, 27825, 29175, 40845, 41234, 55650, 58350, 61851, 68075, 81690, 103085, 123702, 136150, 144319, 204225, 206170, 288638, 309255, 408450, 432957, 515425, 618510, 721595, 865914, 1030850, 1443190, 1546275, 2164785, 3092550, 3607975, 4329570, 7215950, 10823925, 21647850]

約数ペア:

[(1, 21647850), (2, 10823925), (3, 7215950), (5, 4329570), (6, 3607975), (7, 3092550), (10, 2164785), (14, 1546275), (15, 1443190), (21, 1030850), (25, 865914), (30, 721595), (35, 618510), (42, 515425), (50, 432957), (53, 408450), (70, 309255), (75, 288638), (105, 206170), (106, 204225), (150, 144319), (159, 136150), (175, 123702), (210, 103085), (265, 81690), (318, 68075), (350, 61851), (371, 58350), (389, 55650), (525, 41234), (530, 40845), (742, 29175), (778, 27825), (795, 27230), (1050, 20617), (1113, 19450), (1167, 18550), (1325, 16338), (1590, 13615), (1855, 11670), (1945, 11130), (2226, 9725), (2334, 9275), (2650, 8169), (2723, 7950), (3710, 5835), (3890, 5565), (3975, 5446)]