21296625

素因数分解:

$3^1\times 5^3\times 7^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:112

約数の個数: 96

約数和(自身を含む): 44104320

約数和(自身を除く): 22807695

約数列:

[1, 3, 5, 7, 15, 19, 21, 25, 35, 49, 57, 61, 75, 95, 105, 125, 133, 147, 175, 183, 245, 285, 305, 375, 399, 427, 475, 525, 665, 735, 875, 915, 931, 1159, 1225, 1281, 1425, 1525, 1995, 2135, 2375, 2625, 2793, 2989, 3325, 3477, 3675, 4575, 4655, 5795, 6125, 6405, 7125, 7625, 8113, 8967, 9975, 10675, 13965, 14945, 16625, 17385, 18375, 22875, 23275, 24339, 28975, 32025, 40565, 44835, 49875, 53375, 56791, 69825, 74725, 86925, 116375, 121695, 144875, 160125, 170373, 202825, 224175, 283955, 349125, 373625, 434625, 608475, 851865, 1014125, 1120875, 1419775, 3042375, 4259325, 7098875, 21296625]

約数ペア:

[(1, 21296625), (3, 7098875), (5, 4259325), (7, 3042375), (15, 1419775), (19, 1120875), (21, 1014125), (25, 851865), (35, 608475), (49, 434625), (57, 373625), (61, 349125), (75, 283955), (95, 224175), (105, 202825), (125, 170373), (133, 160125), (147, 144875), (175, 121695), (183, 116375), (245, 86925), (285, 74725), (305, 69825), (375, 56791), (399, 53375), (427, 49875), (475, 44835), (525, 40565), (665, 32025), (735, 28975), (875, 24339), (915, 23275), (931, 22875), (1159, 18375), (1225, 17385), (1281, 16625), (1425, 14945), (1525, 13965), (1995, 10675), (2135, 9975), (2375, 8967), (2625, 8113), (2793, 7625), (2989, 7125), (3325, 6405), (3477, 6125), (3675, 5795), (4575, 4655)]