18408234

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{331}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 42835968

約数和(自身を除く): 24427734

約数列:

[1, 2, 3, 6, 13, 23, 26, 31, 39, 46, 62, 69, 78, 93, 138, 186, 299, 331, 403, 598, 662, 713, 806, 897, 993, 1209, 1426, 1794, 1986, 2139, 2418, 4278, 4303, 7613, 8606, 9269, 10261, 12909, 15226, 18538, 20522, 22839, 25818, 27807, 30783, 45678, 55614, 61566, 98969, 133393, 197938, 236003, 266786, 296907, 400179, 472006, 593814, 708009, 800358, 1416018, 3068039, 6136078, 9204117, 18408234]

約数ペア:

[(1, 18408234), (2, 9204117), (3, 6136078), (6, 3068039), (13, 1416018), (23, 800358), (26, 708009), (31, 593814), (39, 472006), (46, 400179), (62, 296907), (69, 266786), (78, 236003), (93, 197938), (138, 133393), (186, 98969), (299, 61566), (331, 55614), (403, 45678), (598, 30783), (662, 27807), (713, 25818), (806, 22839), (897, 20522), (993, 18538), (1209, 15226), (1426, 12909), (1794, 10261), (1986, 9269), (2139, 8606), (2418, 7613), (4278, 4303)]