18405816

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1$

素因数の和:237

約数の個数: 128

約数和(自身を含む): 56125440

約数和(自身を除く): 37719624

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 13, 22, 24, 26, 31, 33, 39, 44, 52, 62, 66, 78, 88, 93, 104, 124, 132, 143, 156, 173, 186, 248, 264, 286, 312, 341, 346, 372, 403, 429, 519, 572, 682, 692, 744, 806, 858, 1023, 1038, 1144, 1209, 1364, 1384, 1612, 1716, 1903, 2046, 2076, 2249, 2418, 2728, 3224, 3432, 3806, 4092, 4152, 4433, 4498, 4836, 5363, 5709, 6747, 7612, 8184, 8866, 8996, 9672, 10726, 11418, 13299, 13494, 15224, 16089, 17732, 17992, 21452, 22836, 24739, 26598, 26988, 32178, 35464, 42904, 45672, 49478, 53196, 53976, 58993, 64356, 69719, 74217, 98956, 106392, 117986, 128712, 139438, 148434, 176979, 197912, 209157, 235972, 278876, 296868, 353958, 418314, 471944, 557752, 593736, 707916, 766909, 836628, 1415832, 1533818, 1673256, 2300727, 3067636, 4601454, 6135272, 9202908, 18405816]

約数ペア:

[(1, 18405816), (2, 9202908), (3, 6135272), (4, 4601454), (6, 3067636), (8, 2300727), (11, 1673256), (12, 1533818), (13, 1415832), (22, 836628), (24, 766909), (26, 707916), (31, 593736), (33, 557752), (39, 471944), (44, 418314), (52, 353958), (62, 296868), (66, 278876), (78, 235972), (88, 209157), (93, 197912), (104, 176979), (124, 148434), (132, 139438), (143, 128712), (156, 117986), (173, 106392), (186, 98956), (248, 74217), (264, 69719), (286, 64356), (312, 58993), (341, 53976), (346, 53196), (372, 49478), (403, 45672), (429, 42904), (519, 35464), (572, 32178), (682, 26988), (692, 26598), (744, 24739), (806, 22836), (858, 21452), (1023, 17992), (1038, 17732), (1144, 16089), (1209, 15224), (1364, 13494), (1384, 13299), (1612, 11418), (1716, 10726), (1903, 9672), (2046, 8996), (2076, 8866), (2249, 8184), (2418, 7612), (2728, 6747), (3224, 5709), (3432, 5363), (3806, 4836), (4092, 4498), (4152, 4433)]