21369036

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 72

約数和(自身を含む): 55523664

約数和(自身を除く): 34154628

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 169, 246, 257, 338, 492, 507, 514, 533, 676, 771, 1014, 1028, 1066, 1542, 1599, 2028, 2132, 3084, 3198, 3341, 6396, 6682, 6929, 10023, 10537, 13364, 13858, 20046, 20787, 21074, 27716, 31611, 40092, 41574, 42148, 43433, 63222, 83148, 86866, 126444, 130299, 136981, 173732, 260598, 273962, 410943, 521196, 547924, 821886, 1643772, 1780753, 3561506, 5342259, 7123012, 10684518, 21369036]

約数ペア:

[(1, 21369036), (2, 10684518), (3, 7123012), (4, 5342259), (6, 3561506), (12, 1780753), (13, 1643772), (26, 821886), (39, 547924), (41, 521196), (52, 410943), (78, 273962), (82, 260598), (123, 173732), (156, 136981), (164, 130299), (169, 126444), (246, 86866), (257, 83148), (338, 63222), (492, 43433), (507, 42148), (514, 41574), (533, 40092), (676, 31611), (771, 27716), (1014, 21074), (1028, 20787), (1066, 20046), (1542, 13858), (1599, 13364), (2028, 10537), (2132, 10023), (3084, 6929), (3198, 6682), (3341, 6396)]