21385184

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2069}}^1$

素因数の和:2115

約数の個数: 48

約数和(自身を含む): 46947600

約数和(自身を除く): 25562416

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 68, 76, 136, 152, 272, 304, 323, 544, 608, 646, 1292, 2069, 2584, 4138, 5168, 8276, 10336, 16552, 33104, 35173, 39311, 66208, 70346, 78622, 140692, 157244, 281384, 314488, 562768, 628976, 668287, 1125536, 1257952, 1336574, 2673148, 5346296, 10692592, 21385184]

約数ペア:

[(1, 21385184), (2, 10692592), (4, 5346296), (8, 2673148), (16, 1336574), (17, 1257952), (19, 1125536), (32, 668287), (34, 628976), (38, 562768), (68, 314488), (76, 281384), (136, 157244), (152, 140692), (272, 78622), (304, 70346), (323, 66208), (544, 39311), (608, 35173), (646, 33104), (1292, 16552), (2069, 10336), (2584, 8276), (4138, 5168)]