16955865

素因数分解:

$3^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:175

約数の個数: 64

約数和(自身を含む): 32140800

約数和(自身を除く): 15184935

約数列:

[1, 3, 5, 9, 15, 27, 29, 45, 61, 71, 87, 135, 145, 183, 213, 261, 305, 355, 435, 549, 639, 783, 915, 1065, 1305, 1647, 1769, 1917, 2059, 2745, 3195, 3915, 4331, 5307, 6177, 8235, 8845, 9585, 10295, 12993, 15921, 18531, 21655, 26535, 30885, 38979, 47763, 55593, 64965, 79605, 92655, 116937, 125599, 194895, 238815, 277965, 376797, 584685, 627995, 1130391, 1883985, 3391173, 5651955, 16955865]

約数ペア:

[(1, 16955865), (3, 5651955), (5, 3391173), (9, 1883985), (15, 1130391), (27, 627995), (29, 584685), (45, 376797), (61, 277965), (71, 238815), (87, 194895), (135, 125599), (145, 116937), (183, 92655), (213, 79605), (261, 64965), (305, 55593), (355, 47763), (435, 38979), (549, 30885), (639, 26535), (783, 21655), (915, 18531), (1065, 15921), (1305, 12993), (1647, 10295), (1769, 9585), (1917, 8845), (2059, 8235), (2745, 6177), (3195, 5307), (3915, 4331)]