18773235

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:609

約数の個数: 64

約数和(自身を含む): 37900800

約数和(自身を除く): 19127565

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 95, 117, 135, 171, 195, 247, 285, 351, 513, 563, 585, 741, 855, 1235, 1689, 1755, 2223, 2565, 2815, 3705, 5067, 6669, 7319, 8445, 10697, 11115, 15201, 21957, 25335, 32091, 33345, 36595, 53485, 65871, 76005, 96273, 109785, 139061, 160455, 197613, 288819, 329355, 417183, 481365, 695305, 988065, 1251549, 1444095, 2085915, 3754647, 6257745, 18773235]

約数ペア:

[(1, 18773235), (3, 6257745), (5, 3754647), (9, 2085915), (13, 1444095), (15, 1251549), (19, 988065), (27, 695305), (39, 481365), (45, 417183), (57, 329355), (65, 288819), (95, 197613), (117, 160455), (135, 139061), (171, 109785), (195, 96273), (247, 76005), (285, 65871), (351, 53485), (513, 36595), (563, 33345), (585, 32091), (741, 25335), (855, 21957), (1235, 15201), (1689, 11115), (1755, 10697), (2223, 8445), (2565, 7319), (2815, 6669), (3705, 5067)]