21623784

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{9901}}^1$

素因数の和:9930

約数の個数: 64

約数和(自身を含む): 66541440

約数和(自身を除く): 44917656

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 21, 24, 26, 28, 39, 42, 52, 56, 78, 84, 91, 104, 156, 168, 182, 273, 312, 364, 546, 728, 1092, 2184, 9901, 19802, 29703, 39604, 59406, 69307, 79208, 118812, 128713, 138614, 207921, 237624, 257426, 277228, 386139, 415842, 514852, 554456, 772278, 831684, 900991, 1029704, 1544556, 1663368, 1801982, 2702973, 3089112, 3603964, 5405946, 7207928, 10811892, 21623784]

約数ペア:

[(1, 21623784), (2, 10811892), (3, 7207928), (4, 5405946), (6, 3603964), (7, 3089112), (8, 2702973), (12, 1801982), (13, 1663368), (14, 1544556), (21, 1029704), (24, 900991), (26, 831684), (28, 772278), (39, 554456), (42, 514852), (52, 415842), (56, 386139), (78, 277228), (84, 257426), (91, 237624), (104, 207921), (156, 138614), (168, 128713), (182, 118812), (273, 79208), (312, 69307), (364, 59406), (546, 39604), (728, 29703), (1092, 19802), (2184, 9901)]