21804822

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{349}}^1$

素因数の和:462

約数の個数: 64

約数和(自身を含む): 52920000

約数和(自身を除く): 31115178

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 89, 117, 178, 234, 267, 349, 351, 534, 698, 702, 801, 1047, 1157, 1602, 2094, 2314, 2403, 3141, 3471, 4537, 4806, 6282, 6942, 9074, 9423, 10413, 13611, 18846, 20826, 27222, 31061, 31239, 40833, 62122, 62478, 81666, 93183, 122499, 186366, 244998, 279549, 403793, 559098, 807586, 838647, 1211379, 1677294, 2422758, 3634137, 7268274, 10902411, 21804822]

約数ペア:

[(1, 21804822), (2, 10902411), (3, 7268274), (6, 3634137), (9, 2422758), (13, 1677294), (18, 1211379), (26, 838647), (27, 807586), (39, 559098), (54, 403793), (78, 279549), (89, 244998), (117, 186366), (178, 122499), (234, 93183), (267, 81666), (349, 62478), (351, 62122), (534, 40833), (698, 31239), (702, 31061), (801, 27222), (1047, 20826), (1157, 18846), (1602, 13611), (2094, 10413), (2314, 9423), (2403, 9074), (3141, 6942), (3471, 6282), (4537, 4806)]