21372078340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1409}}^1\times {\mathrm{12433}}^1$

素因数の和:13912

約数の個数: 48

約数和(自身を含む): 45653171760

約数和(自身を除く): 24281093420

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1409, 2818, 5636, 7045, 12433, 14090, 24866, 28180, 49732, 62165, 85949, 124330, 171898, 248660, 343796, 429745, 758413, 859490, 1516826, 1718980, 3033652, 3792065, 7584130, 15168260, 17518097, 35036194, 70072388, 87590485, 175180970, 350361940, 1068603917, 2137207834, 4274415668, 5343019585, 10686039170, 21372078340]

約数ペア:

[(1, 21372078340), (2, 10686039170), (4, 5343019585), (5, 4274415668), (10, 2137207834), (20, 1068603917), (61, 350361940), (122, 175180970), (244, 87590485), (305, 70072388), (610, 35036194), (1220, 17518097), (1409, 15168260), (2818, 7584130), (5636, 3792065), (7045, 3033652), (12433, 1718980), (14090, 1516826), (24866, 859490), (28180, 758413), (49732, 429745), (62165, 343796), (85949, 248660), (124330, 171898)]