21218850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{61}}^1\times {\mathrm{773}}^1$

素因数の和:852

約数の個数: 72

約数和(自身を含む): 58017492

約数和(自身を除く): 36798642

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 61, 75, 90, 122, 150, 183, 225, 305, 366, 450, 549, 610, 773, 915, 1098, 1525, 1546, 1830, 2319, 2745, 3050, 3865, 4575, 4638, 5490, 6957, 7730, 9150, 11595, 13725, 13914, 19325, 23190, 27450, 34785, 38650, 47153, 57975, 69570, 94306, 115950, 141459, 173925, 235765, 282918, 347850, 424377, 471530, 707295, 848754, 1178825, 1414590, 2121885, 2357650, 3536475, 4243770, 7072950, 10609425, 21218850]

約数ペア:

[(1, 21218850), (2, 10609425), (3, 7072950), (5, 4243770), (6, 3536475), (9, 2357650), (10, 2121885), (15, 1414590), (18, 1178825), (25, 848754), (30, 707295), (45, 471530), (50, 424377), (61, 347850), (75, 282918), (90, 235765), (122, 173925), (150, 141459), (183, 115950), (225, 94306), (305, 69570), (366, 57975), (450, 47153), (549, 38650), (610, 34785), (773, 27450), (915, 23190), (1098, 19325), (1525, 13914), (1546, 13725), (1830, 11595), (2319, 9150), (2745, 7730), (3050, 6957), (3865, 5490), (4575, 4638)]