21691950

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{283}}^1$

素因数の和:378

約数の個数: 96

約数和(自身を含む): 62543616

約数和(自身を除く): 40851666

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 73, 75, 105, 146, 150, 175, 210, 219, 283, 350, 365, 438, 511, 525, 566, 730, 849, 1022, 1050, 1095, 1415, 1533, 1698, 1825, 1981, 2190, 2555, 2830, 3066, 3650, 3962, 4245, 5110, 5475, 5943, 7075, 7665, 8490, 9905, 10950, 11886, 12775, 14150, 15330, 19810, 20659, 21225, 25550, 29715, 38325, 41318, 42450, 49525, 59430, 61977, 76650, 99050, 103295, 123954, 144613, 148575, 206590, 289226, 297150, 309885, 433839, 516475, 619770, 723065, 867678, 1032950, 1446130, 1549425, 2169195, 3098850, 3615325, 4338390, 7230650, 10845975, 21691950]

約数ペア:

[(1, 21691950), (2, 10845975), (3, 7230650), (5, 4338390), (6, 3615325), (7, 3098850), (10, 2169195), (14, 1549425), (15, 1446130), (21, 1032950), (25, 867678), (30, 723065), (35, 619770), (42, 516475), (50, 433839), (70, 309885), (73, 297150), (75, 289226), (105, 206590), (146, 148575), (150, 144613), (175, 123954), (210, 103295), (219, 99050), (283, 76650), (350, 61977), (365, 59430), (438, 49525), (511, 42450), (525, 41318), (566, 38325), (730, 29715), (849, 25550), (1022, 21225), (1050, 20659), (1095, 19810), (1415, 15330), (1533, 14150), (1698, 12775), (1825, 11886), (1981, 10950), (2190, 9905), (2555, 8490), (2830, 7665), (3066, 7075), (3650, 5943), (3962, 5475), (4245, 5110)]