21801654

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{7523}}^1$

素因数の和:7561

約数の個数: 48

約数和(自身を含む): 56339712

約数和(自身を除く): 34538058

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 42, 46, 63, 69, 126, 138, 161, 207, 322, 414, 483, 966, 1449, 2898, 7523, 15046, 22569, 45138, 52661, 67707, 105322, 135414, 157983, 173029, 315966, 346058, 473949, 519087, 947898, 1038174, 1211203, 1557261, 2422406, 3114522, 3633609, 7267218, 10900827, 21801654]

約数ペア:

[(1, 21801654), (2, 10900827), (3, 7267218), (6, 3633609), (7, 3114522), (9, 2422406), (14, 1557261), (18, 1211203), (21, 1038174), (23, 947898), (42, 519087), (46, 473949), (63, 346058), (69, 315966), (126, 173029), (138, 157983), (161, 135414), (207, 105322), (322, 67707), (414, 52661), (483, 45138), (966, 22569), (1449, 15046), (2898, 7523)]