18957536

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{229}}^1$

素因数の和:451

約数の個数: 48

約数和(自身を含む): 40572000

約数和(自身を除く): 21614464

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 199, 208, 229, 398, 416, 458, 796, 916, 1592, 1832, 2587, 2977, 3184, 3664, 5174, 5954, 6368, 7328, 10348, 11908, 20696, 23816, 41392, 45571, 47632, 82784, 91142, 95264, 182284, 364568, 592423, 729136, 1184846, 1458272, 2369692, 4739384, 9478768, 18957536]

約数ペア:

[(1, 18957536), (2, 9478768), (4, 4739384), (8, 2369692), (13, 1458272), (16, 1184846), (26, 729136), (32, 592423), (52, 364568), (104, 182284), (199, 95264), (208, 91142), (229, 82784), (398, 47632), (416, 45571), (458, 41392), (796, 23816), (916, 20696), (1592, 11908), (1832, 10348), (2587, 7328), (2977, 6368), (3184, 5954), (3664, 5174)]