221811148

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1$

素因数の和:275

約数の個数: 72

約数和(自身を含む): 441606816

約数和(自身を除く): 219795668

約数列:

[1, 2, 4, 13, 26, 41, 52, 53, 82, 106, 151, 164, 169, 212, 302, 338, 533, 604, 676, 689, 1066, 1378, 1963, 2132, 2173, 2756, 3926, 4346, 6191, 6929, 7852, 8003, 8692, 8957, 12382, 13858, 16006, 17914, 24764, 25519, 27716, 28249, 32012, 35828, 51038, 56498, 80483, 102076, 104039, 112996, 160966, 208078, 321932, 328123, 367237, 416156, 656246, 734474, 1046279, 1312492, 1352507, 1468948, 2092558, 2705014, 4185116, 4265599, 5410028, 8531198, 17062396, 55452787, 110905574, 221811148]

約数ペア:

[(1, 221811148), (2, 110905574), (4, 55452787), (13, 17062396), (26, 8531198), (41, 5410028), (52, 4265599), (53, 4185116), (82, 2705014), (106, 2092558), (151, 1468948), (164, 1352507), (169, 1312492), (212, 1046279), (302, 734474), (338, 656246), (533, 416156), (604, 367237), (676, 328123), (689, 321932), (1066, 208078), (1378, 160966), (1963, 112996), (2132, 104039), (2173, 102076), (2756, 80483), (3926, 56498), (4346, 51038), (6191, 35828), (6929, 32012), (7852, 28249), (8003, 27716), (8692, 25519), (8957, 24764), (12382, 17914), (13858, 16006)]