21546840

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{227}}^1$

素因数の和:361

約数の個数: 128

約数和(自身を含む): 74856960

約数和(自身を除く): 53310120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 113, 120, 140, 168, 210, 226, 227, 280, 339, 420, 452, 454, 565, 678, 681, 791, 840, 904, 908, 1130, 1135, 1356, 1362, 1582, 1589, 1695, 1816, 2260, 2270, 2373, 2712, 2724, 3164, 3178, 3390, 3405, 3955, 4520, 4540, 4746, 4767, 5448, 6328, 6356, 6780, 6810, 7910, 7945, 9080, 9492, 9534, 11865, 12712, 13560, 13620, 15820, 15890, 18984, 19068, 23730, 23835, 25651, 27240, 31640, 31780, 38136, 47460, 47670, 51302, 63560, 76953, 94920, 95340, 102604, 128255, 153906, 179557, 190680, 205208, 256510, 307812, 359114, 384765, 513020, 538671, 615624, 718228, 769530, 897785, 1026040, 1077342, 1436456, 1539060, 1795570, 2154684, 2693355, 3078120, 3591140, 4309368, 5386710, 7182280, 10773420, 21546840]

約数ペア:

[(1, 21546840), (2, 10773420), (3, 7182280), (4, 5386710), (5, 4309368), (6, 3591140), (7, 3078120), (8, 2693355), (10, 2154684), (12, 1795570), (14, 1539060), (15, 1436456), (20, 1077342), (21, 1026040), (24, 897785), (28, 769530), (30, 718228), (35, 615624), (40, 538671), (42, 513020), (56, 384765), (60, 359114), (70, 307812), (84, 256510), (105, 205208), (113, 190680), (120, 179557), (140, 153906), (168, 128255), (210, 102604), (226, 95340), (227, 94920), (280, 76953), (339, 63560), (420, 51302), (452, 47670), (454, 47460), (565, 38136), (678, 31780), (681, 31640), (791, 27240), (840, 25651), (904, 23835), (908, 23730), (1130, 19068), (1135, 18984), (1356, 15890), (1362, 15820), (1582, 13620), (1589, 13560), (1695, 12712), (1816, 11865), (2260, 9534), (2270, 9492), (2373, 9080), (2712, 7945), (2724, 7910), (3164, 6810), (3178, 6780), (3390, 6356), (3405, 6328), (3955, 5448), (4520, 4767), (4540, 4746)]